Andréas Musolff
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View article: From Soil Moisture Spatial Patterns to Catchment Nitrate Dynamics Using Explainable AI
From Soil Moisture Spatial Patterns to Catchment Nitrate Dynamics Using Explainable AI Open
Catchment wetness and related hydrological connectivity determine nitrate mobilization, transport and transformation. However, quantifying connectivity at this scale remains challenging. In this study, we tackle this challenge by developin…
View article: QUADICA v2: Extending the large-sample data set for water QUAlity, DIscharge and Catchment Attributes in Germany
QUADICA v2: Extending the large-sample data set for water QUAlity, DIscharge and Catchment Attributes in Germany Open
The QUADICA version 2 dataset significantly expands upon the first version of QUADICA (water QUAlity, DIscharge and Catchment Attributes for large-sample studies in Germany), by incorporating more recent data, additional water quality and …
View article: Lake–Groundwater Biogeochemical Interactions in a River‐Delimited System: The Groundwater and Lakes Urban Observatory (GLUO)
Lake–Groundwater Biogeochemical Interactions in a River‐Delimited System: The Groundwater and Lakes Urban Observatory (GLUO) Open
Preservation of urban aquatic ecosystems is of primary importance for human well‐being, biodiversity protection and the future of society. Lake–groundwater–river interactions within urban floodplains harbour intrinsic fragility, yet remain…
View article: From Soil Moisture Spatial Patterns to Catchment Nitrate Dynamics using Explainable AI
From Soil Moisture Spatial Patterns to Catchment Nitrate Dynamics using Explainable AI Open
View article: Scenario analysis of nitrogen surplus typologies in Europe shows that a 20% fertilizer reduction may fall short of 2030 EU Green Deal goals
Scenario analysis of nitrogen surplus typologies in Europe shows that a 20% fertilizer reduction may fall short of 2030 EU Green Deal goals Open
The Farm to Fork (F2F) Strategy under the Green Deal aims to halve nutrient losses by 2030 in the European Union (EU). Here, using the nitrogen surplus as an indicator for nitrogen losses in agricultural areas, we explore a range of scenar…
View article: Linking spatial patterns of chlorophyll <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si74.svg" display="inline" id="d1e4191"> <mml:mi>a</mml:mi> </mml:math> and phosphorus concentrations: River length and upstream lakes control realized eutrophication in German rivers
Linking spatial patterns of chlorophyll and phosphorus concentrations: River length and upstream lakes control realized eutrophication in German rivers Open
Eutrophication, i.e., the enhanced primary production above the natural level due to nutrient enrichment, remains a serious problem in river ecosystems despite substantial reduction of the limiting nutrient phosphorus (P). This study inves…
View article: Groundwater head responses to droughts across Germany
Groundwater head responses to droughts across Germany Open
Groundwater is a crucial resource for society and the environment, e.g., for drinking-water supply and dry-weather stream flows. The recent severe drought in Europe (2018–2020) has demonstrated that these services could be jeopardized by o…
View article: mQM model outputs (fluxes and states) for the Rhine and Elbe basins and subbasins
mQM model outputs (fluxes and states) for the Rhine and Elbe basins and subbasins Open
View article: How anthropogenic modification of riverscapes reduces the resilience of floodplain water bodies to drought
How anthropogenic modification of riverscapes reduces the resilience of floodplain water bodies to drought Open
View article: The Harz Mountain Observatory: a hydro-ecological observatory for long-term effects of large-scale forest change
The Harz Mountain Observatory: a hydro-ecological observatory for long-term effects of large-scale forest change Open
Until 2017, up to 90% of the Harz Mountains were forested, mostly with Norwegian spruce. As a result of storms and the drought 2018-2020, the large-scale spruce monoculture stands (proportion of spruce in the tree population: approx. 80%) …
View article: Spatial and Temporal Variability of River Water Quality
Spatial and Temporal Variability of River Water Quality Open
The deterioration of stream water quality threatens ecosystems and human water security worldwide. Effective risk assessment and mitigation requires spatial and temporal data from water quality monitoring networks (WQMNs). However, it rema…
View article: Water quality responses to hydrological droughts can be predicted from long-term concentration–discharge relationships
Water quality responses to hydrological droughts can be predicted from long-term concentration–discharge relationships Open
View article: The Riparian Zone Controls Headwater Hydrology and Biogeochemistry, Doesn't It? Reassessing Linkages Across European Ecoregions
The Riparian Zone Controls Headwater Hydrology and Biogeochemistry, Doesn't It? Reassessing Linkages Across European Ecoregions Open
Riparian zones are known to control the hydrology and biogeochemistry of forest headwater catchments. Some evidence suggests that these riparian‐stream connections are shaped by a relatively small volume of soil, or dominant source layer (…
View article: More Frequent Runoff and Connected Sources in Headwaters Promote Browning of Northern Freshwaters
More Frequent Runoff and Connected Sources in Headwaters Promote Browning of Northern Freshwaters Open
View article: Concentration‐Discharge Relationships Revisited: Overused But Underutilised?
Concentration‐Discharge Relationships Revisited: Overused But Underutilised? Open
Over the past 50 years, concentration‐discharge (cQ) relationships have been widely used to analyse water quality dynamics. Nowadays improved availability of concentration ( c ) and discharge ( Q ) data at different spatial and temporal sc…
View article: Can the young water fraction reduce predictive uncertainty in water transit time estimations?
Can the young water fraction reduce predictive uncertainty in water transit time estimations? Open
View article: Groundwater head responses to droughts across Germany
Groundwater head responses to droughts across Germany Open
Groundwater is a crucial resource for society and the environment, e.g. for drinking water supply and dry-weather stream flows. The recent severe drought in Europe (2018–2020) has demonstrated that these services could be jeopardized by on…
View article: Supplementary material to "Groundwater head responses to droughts across Germany"
Supplementary material to "Groundwater head responses to droughts across Germany" Open
View article: Forest Dieback Alters Nutrient Pathways in a Temperate Headwater Catchment
Forest Dieback Alters Nutrient Pathways in a Temperate Headwater Catchment Open
Forested headwater catchments ensure good water quality for downstream ecosystems and human consumption. Climate change and the exacerbating likelihood of extreme events elevate the risk of severe forest dieback. However, the effects of fo…
View article: High frequency dataset for event-scale concentration-discharge analysis in a forested headwater 01/2018-08/2023
High frequency dataset for event-scale concentration-discharge analysis in a forested headwater 01/2018-08/2023 Open
View article: Fifteen Years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services, and Lessons Learned
Fifteen Years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services, and Lessons Learned Open
The need to develop and provide integrated observation systems to better understand and manage global and regional environmental change is one of the major challenges facing Earth system science today. In 2008, the German Helmholtz Associa…
View article: Divergence Between Long‐Term and Event‐Scale Nitrate Export Patterns
Divergence Between Long‐Term and Event‐Scale Nitrate Export Patterns Open
The mechanisms driving catchment nitrogen storage and release operate at multiple spatiotemporal scales. Consequently, analyses grounded in different observational timescales can yield discrepant interpretations of underlying mechanisms. T…
View article: The value of instream stable water isotope and nitrate concentration data for calibrating a travel time‐based water quality model
The value of instream stable water isotope and nitrate concentration data for calibrating a travel time‐based water quality model Open
Transit time‐based water quality models using StorAge Selection (SAS) functions are crucial for nitrate (NO 3 − ) management. However, relying solely on instream NO 3 − concentration for model calibration can result in poor parameter ident…
View article: Shifting nitrate seasonality along decades of anthropogenic impact in western European catchments
Shifting nitrate seasonality along decades of anthropogenic impact in western European catchments Open
Nitrate pollution in streams, although attempts have been made to combat it, remains a persistent problem, especially in highly anthropogenically impacted landscapes such as Western Europe. Nitrate concentrations and discharge typically va…
View article: Empirical large-scale evidence of algae growth control in rivers: Is total phosphorus control (still) a good management strategy?
Empirical large-scale evidence of algae growth control in rivers: Is total phosphorus control (still) a good management strategy? Open
Since the 1980s, the problem of algae blooms in rivers as a manifestation of eutrophication has been addressed by lowering nutrient inputs with a specific focus on limiting phosphorus. Despite the past achievements in phosphorus control, a…
View article: Riverine nitrogen exports to the Wadden Sea &#8211; a travel time-based modelling approach
Riverine nitrogen exports to the Wadden Sea – a travel time-based modelling approach Open
Elevated nutrient levels in inland, coastal and marine waters have led to negative eutrophication impacts such as algal blooms and biodiversity loss. In the European Union, measures to reduce nutrient pollution have been implemented as par…
View article: Integrating and managing nitrogen and phosphorus dynamics in agriculturally impacted inland waters via a stoichiometric nutrient management framework
Integrating and managing nitrogen and phosphorus dynamics in agriculturally impacted inland waters via a stoichiometric nutrient management framework Open
Agricultural nutrient management tends to treat nitrogen (N) and phosphorus (P) in surface waters as separate entities, potentially overlooking their strong interactions in biogeochemical cycles. This study proposes a unifying approach by …
View article: Towards Understanding the Effects of Climate and Land Cover Change on Dissolved Organic Carbon Export in Temperate Forest Catchments
Towards Understanding the Effects of Climate and Land Cover Change on Dissolved Organic Carbon Export in Temperate Forest Catchments Open
The amount of dissolved organic carbon (DOC) in surface waters is an important water quality indicator. High levels of DOC in surface waters cause negative impacts on the aquatic ecosystem (e.g., via reducing light penetration and increasi…
View article: Uncovering the impact of hydrological connectivity on nitrate transport at the catchment scale using explainable AI
Uncovering the impact of hydrological connectivity on nitrate transport at the catchment scale using explainable AI Open
Nitrate contamination of water bodies is a major concern worldwide, as it poses a risk of eutrophication and biodiversity loss. Nitrate travels from agricultural land to streams through different hydrological pathways, which are abstrusely…
View article: 15 years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services and Lessons Learned
15 years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services and Lessons Learned Open
The need to develop and provide integrated observation systems to better understand and manage global and regional environmental change is one of the major challenges facing Earth system science today. In 2008, the German Helmholtz Associa…